
6.RETHREADING SUPPLEMENT B-63344EN/02
- 250 -
(6) Teach the thread position to synchronize the tool feed with the
thread.
Before this operation, at least START X and START Y must be
set for the figure.
- Touch the tool on the bottom of the thread to be rethreaded.
- Press soft-key [SYNC P].
At this time, angular displacement Q for synchronization
with the thread described above is calculated and the
calculation result and taught position are displayed as
follows:
*
SHIFT = ←Calculation result Q
TYPE =
METHOD = REPAIR
ANGL =
LEAD =
*
START X =
START Z =
END X =
END Z =
SHIFT OFS = ←Amount of accumulation during acceleration Qp
SYNC POS = ←Taught thread position
If threading is executed before soft-key [SYNC P] is pressed,
macro alarm, "3001 CHECK PROCESS DATA," is issued.
(7) Manually remove the tool from the thread and move it to a safe
position at which cutting can be started. Then, press soft-key
[CAN OR] to cancel spindle orientation.
When soft-key [CAN OR] is pressed, the M code for canceling
orientation set for parameter No. 4961 is output. If the tool is not
at the distance specified for parameter No. 9843 from the thread,
the warning message, "MOVE TOOL AWAY FROM
THREAD," is displayed.
(8) Press soft-key [EXEC] or the [START] button on the machine
operator's panel to execute rethreading.
When rethreading is selected, process data "CUT TIMES" is
automatically set to 1. For this reason, rethreading is performed
only once in ordinary cases. The operator can change the value
set for "CUT TIMES/CUT AMUNT", however. When the value
is changed, rethreading is executed according to the specified
value.
To use this function, the parameter 9848 bit 7 (TRP) must be set
to 1.